package com.jjh.mapper;import org.apache.ibatis.annotations.Param;import java.util.Map;/** * @Author Sunny * @Date 2018/5/4 18:19 */public interface VoterMapper {    Map<String,Long>selectById(@Param("openid")String openid);    void insertById(@Param("openid")String openid);    void  updateInfo(@Param("openid")String openid,@Param("num")int num);    Map<String,Long>selectbyId(@Param("openid")String openid);}